I am using a Solr server and store the data on a NFS volume. I know that this is not recommende, but in my case there is no other option. After encountering some locking-related error messages I tried out different locking settings. According to the solr documentation (https://solr.apache.org/guide/8_1/indexconfig-in-solrconfig.html) there are 4 lockTypes: native, simple, single and hdfs. But there is also the not really documented lockType none.
Since I also encountered issues with simple and single I am using "none", now and everything seems to be working fine. However, I am a bit worried now that at some point everything will crash and won't start again. Is this a possible scenario?